$NetBSD: patch-aa,v 1.2 2004/03/15 15:57:33 jmmv Exp $

--- igs/datetime.cc.orig	2003-09-26 19:18:08.000000000 +0200
+++ igs/datetime.cc
@@ -7,6 +7,8 @@
  * published by the Free Software Foundation.
  */
 
+#include <stdlib.h>
+#include <time.h>
 #define _XOPEN_SOURCE
 #define _GNU_SOURCE
 #include <ctime>